Steam-boiler.



Patented July 3, I900. G. EBELING.

STEAM BOILER.

(Application. filed Mar. 15, 1900.)

' 2 Siesta- 8M (No Model.)

m: NORRIS Perms 00.. mo'muwm. WASHINGTON. 0. c.

No. 653,076. Patented July-3, I90D.

a. EBELING.

STEAM emu-zap (Applicaiion filed Mar. 15, 1900.)

(No Model.) 2 Shgets-Sheeii 2.

5 J\ VCAL m: scams yzrzns co, maroaamou wnsumn'rou u c UNITED STATES P TE T OFFICE.

GUSTAV'EBELING, OF CHESTER, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO WILLIAM M. BOULDEN, OF SAME PLACE.

STEAM-BOILER.

SFECI FI CATION forming part of Letters Patent ItTo. 653,076, dated July 3, 1900.

Application filed March 15, 1900. Serial No. 8,772. (No model.)

To all whom it may concern:

Be it known that I, GUSTAV EBELING, a citizen of the United States, residing at Chester, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Steam-Boilers; and Ido declare the following to .be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to steam-boilers of the class commonly known as tubular circulat ing-boilers, in which both vertical and inclined sets of tubes are employed and suitably incased in an incasing shell provided with the necessary doors, fire-grate, and ash-pit usually employed in connection with steam-boilers; and the invention consists in the novel constructionand combination of parts of the steam-boiler, as hereinafter fully described and claimed.

In the annexed drawings, forming part of this specification, Figure 1 is a view in side elevation of the steam-drum, the front cylin-' der, the rear cylinder, the lower cylinder, the mud-drum, and blow-off, the vertical tubes, the inclined tubes, and the feed-waterinlet and tubes of asteam-iboiler embodying myimprovements. Fig. 2 is a rear elevation of .Fig. 1. Fig. 3 is a tr ct elevation of Fig. 1. Fig. 4.- is a top pla-I' view of the U-shaped pipe. Fig. 5 is a vertical sectional view of the tubeholding sheets and the inclined tubes secured thereto. Fig. 6 is a vertical sectional detail view of a modification of one of the tube-' sheets at the end of the inclined tubes, the tube-sheets being constructed alike at both ends of the inclined pipes; and Fig. 7 is a detail View of a portion of one of the supporting-frames, showing the open partition therein and the screw-plugs in the screw-seats of the same.

Referring by figures to the accompanying drawings, 1 designates the hollow rectangular supportingframe in which the lower ends of the vertical boiler-tubes are seated. This hollow supporting-frame l is connected to the lower cylinder and provided with a vertical partition 2 between each two adjacent vertical tubes 3 and is also provided with removable screw plugs 1 in screw-seats 5 between nected to a hollow upper supporting-frame 7,

which is connected at each end by elbows; 8 and pipes 9 to the steam-drum 10. This supporting-frame 7 is also provided with a set of vertical partitions, similar to those inthe lower frame, between the upper ends of each two vertical tubes 3 and is provided in its upper face with screw-seats 5, in which removable screw-plugs 4c are seated.

A lower cylinder 11 is connected at its front to the ends of the parallel hollow arms of the supporting-frame 1 by flanged collars 12 13, and thecylinder 11 is supported near each endby vertical pipes 15 16, connected at their lower ends with the mud-drum 17, which latter is providedin each end with a blow-off opening closed by a removable plug 17*. The lower cylinder 11 is connected with the lower head 18 of the inclined pipes 19 by centrallydisposed flanged connected pipes 20 21, and

the upper connection 22 on the lower head 18 is connected m ne rear cylinder 23, said cylinder 23 being connected with the steamdrum 10.

1 The front end of the hollow supportingframe 1 is connected by two vertical pipes 2 1 25 with the upper flue-head 26 of the inclined pipes 19, and this flue-head 26 is connected by a centrally-disposed pipe 26 with the front cylinder 27, which latter cylinder is in turn connected with the steam-drum 10 by a sectional pipe 28, having collars 29 thereon. The steam-drum 10 is provided with an outlet-pipe 30 for the steam, by which the steam may beconveyed to the place of consumption. *Each of the cylinders used in this construction is provided with blow-off holes in one or both ends, said blow-0E holes being closed by screw-plugs 10, so that said cylin ders may be blown off orcleaned ofscale when necessary.

The fire-grate used in this connection is made in two sections hinged at the sides to the fire-box upon horizontal shafts and connected together when in the elevated position by a suitable keeper, whichwhen said keeper has been removed will permit the sections of the grate to drop down and discharge its contents into the ash-pit.

The feeding of the boiler by means of a heater of the construction herein shown and described is of the greatest importance, as is also the lower cylinder and the mud-drum connected therewith. The force from a feedpump drives the water through the connected pipes and keeps up a complete circulation of the water through the pipes-that is, entirely around through said pipes-so that the scale is carried down into the mud-drum, where said scale is blown OK when the mud-plug is withdrawn from its seat. Moreover, the tube ends are each expanded in the tube-sheets, and each one of the tubes can be conveniently cleaned out when necessary, therebyprolonging the life of the boiler. The tube-sheets and bolts illustrated in Fig. 5 add great strength to the structure, as the tube-sheets proper are reinforced by the auxiliary sheets bolted thereto.

\Vhile the casing for the boiler is not illustrated herein, it is proper to state that it is made of sheet-steel and is provided with the necessary cleaning-doors, both in the front wall and in the rear wall of said casing, affording easy access to said tubes for permitting an attendant to properly and thoroughly clean said tubes when necessary.

While I have illustrated and described my steam-boiler in the form best known to me,

it is obvious that many minor changes might be made in the construction of the same without departing from the character of the invention, and I do not therefore limit myself to the exact construction and combination of parts as herein set forth.

Having thus fully described my invention, what I claim, and desire to to secure by Letters Patent, is-- 1. In a tubular steam-boiler, the combination with the lower rectangular hollow tubesupporting frame connected by pipe connections with the lower cylinder 11; the upper rectangular hollow tube-supporting frame 1 connected by pipe connections with the steamdrum; a set of vertical tubes connecting said lower and upper hollow supporting-frames; the open vertical partitions in said lower and upper hollow tube-supporting frames; the inclined tubes having their open ends secured ,in the spaced tube-holding sheets; Vertical pipes or tubes connecting said lower rectangular supporting-frame with said spaced front tube-holding sheets; the front cylinder and its pipes connected with the steam-drum and with said spaced front tube-holding sheets; pipes connecting said spaced front tube-holding sheets with said lower hollow supportingframe; pipes connecting the lower rear tubeholding sheets with the lower and upper rear cylinders of the steamboiler; a vertical pipe connecting said lower rear cylinder with the mud-drum; pipe connections between the lower rear tube-holding sheets, the lower rear cylinder and the upper rear cylinder; a vertical pipe connecting the upper rear cylinder with saidsteam-drum; and the circuitous feed-water inlet-pipe connecting a source of water-supply with said lower rear cylinder; substantially as specified.

2. In a tubular steam-boiler, the combination of the front cylinder, the lower and upper rear cylinders; the spaced tube-holding sheets and their inclined tubes, the steamdrum and the m ud-drum and water and steam circulating pipes or tubes connecting said parts; of the upper and lower hollow supporting-frames provided with open partitions;

=vertioal tubes connecting said supportingframes between said open partitions; removable screw-plugs in screw-seats opposite the ends of each vertical tube; and a feed-water inlet-pipe connected with said lower rear cylinder; substantially as specified.

In testimony whereof I have hereunto set my hand in. presence of two subscribing witnesses.

GUSTAV EBELING. Witnesses:

J. HORACE WITsIL, J. M. WITsIL. 

